==================================================================
BUG: KASAN: use-after-free in pn533_acr122_is_rx_frame_valid drivers/nfc/pn533/usb.c:325 [inline]
BUG: KASAN: use-after-free in pn533_acr122_is_rx_frame_valid+0x132/0x150 drivers/nfc/pn533/usb.c:315
Read of size 1 at addr ffff88819cd9f695 by task syz-executor/2990

CPU: 0 UID: 0 PID: 2990 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(lazy) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x13d/0x4b0 mm/kasan/report.c:482
 kasan_report+0xdf/0x1c0 mm/kasan/report.c:595
 pn533_acr122_is_rx_frame_valid drivers/nfc/pn533/usb.c:325 [inline]
 pn533_acr122_is_rx_frame_valid+0x132/0x150 drivers/nfc/pn533/usb.c:315
 pn533_recv_frame+0x1b7/0x6d0 drivers/nfc/pn533/pn533.c:2203
 __usb_hcd_giveback_urb+0x38e/0x610 drivers/usb/core/hcd.c:1657
 usb_hcd_giveback_urb+0x3ca/0x4a0 drivers/usb/core/hcd.c:1741
 dummy_timer+0xdb2/0x3700 drivers/usb/gadget/udc/dummy_hcd.c:2019
 __run_hrtimer kernel/time/hrtimer.c:2067 [inline]
 __hrtimer_run_queues+0x462/0x9c0 kernel/time/hrtimer.c:2124
 hrtimer_run_softirq+0x1ca/0x360 kernel/time/hrtimer.c:2141
 handle_softirqs+0x1d9/0x9b0 kernel/softirq.c:645
 __do_softirq kernel/softirq.c:679 [inline]
 invoke_softirq kernel/softirq.c:519 [inline]
 __irq_exit_rcu+0x168/0x210 kernel/softirq.c:758
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:775
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0x8f/0xb0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:finish_task_switch.isra.0+0x214/0xad0 kernel/sched/core.c:5377
Code: 74 08 3c 03 0f 8e aa 06 00 00 c7 83 40 0d 00 00 00 00 00 00 48 8d 7b 48 e8 49 06 06 06 e8 f4 66 38 00 fb 49 8d bf 30 16 00 00 <48> b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84
RSP: 0018:ffffc900017b7b08 EFLAGS: 00000206
RAX: 000000000002a4f3 RBX: ffff8881f5639e40 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff89329f40 RDI: ffff88810cb41630
RBP: ffffc900017b7b48 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff888114b33c80
R13: 0000000000000000 R14: ffff8881f563ab80 R15: ffff88810cb40000
 context_switch kernel/sched/core.c:5529 [inline]
 __schedule+0x132d/0x47e0 kernel/sched/core.c:7276
 __schedule_loop kernel/sched/core.c:7353 [inline]
 schedule+0xdd/0x2c0 kernel/sched/core.c:7368
 do_nanosleep+0x113/0x500 kernel/time/hrtimer.c:2429
 hrtimer_nanosleep+0x14f/0x350 kernel/time/hrtimer.c:2475
 common_nsleep+0xa1/0xd0 kernel/time/posix-timers.c:1360
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1406 [inline]
 __se_sys_clock_nanosleep kernel/time/posix-timers.c:1383 [inline]
 __x64_sys_clock_nanosleep+0x336/0x480 kernel/time/posix-timers.c:1383
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x119/0x710 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2f33d092d7
Code: 48 89 fa 4c 89 df e8 a8 56 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffddfc6f860 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 000055555c4cb500 RCX: 00007f2f33d092d7
RDX: 00007ffddfc6f8a0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffddfc6f90c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000001388
R13: 00000000000927c0 R14: 000000000002175c R15: 00007ffddfc6f960
 </TASK>

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x19cd9f
flags: 0x200000000000000(node=0|zone=2)
raw: 0200000000000000 ffffea00067367c8 ffffea00067367c8 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner info is not present (never set?)

Memory state around the buggy address:
 ffff88819cd9f580: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88819cd9f600: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff88819cd9f680: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                         ^
 ffff88819cd9f700: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88819cd9f780: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================
----------------
Code disassembly (best guess):
   0:	74 08                	je     0xa
   2:	3c 03                	cmp    $0x3,%al
   4:	0f 8e aa 06 00 00    	jle    0x6b4
   a:	c7 83 40 0d 00 00 00 	movl   $0x0,0xd40(%rbx)
  11:	00 00 00
  14:	48 8d 7b 48          	lea    0x48(%rbx),%rdi
  18:	e8 49 06 06 06       	call   0x6060666
  1d:	e8 f4 66 38 00       	call   0x386716
  22:	fb                   	sti
  23:	49 8d bf 30 16 00 00 	lea    0x1630(%r15),%rdi
* 2a:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax <-- trapping instruction
  31:	fc ff df
  34:	48 89 fa             	mov    %rdi,%rdx
  37:	48 c1 ea 03          	shr    $0x3,%rdx
  3b:	0f b6 04 02          	movzbl (%rdx,%rax,1),%eax
  3f:	84                   	.byte 0x84